My personal favorite of the "medical" terminologies:
Rectal polyp- an asshat
Rectal craniectomy- what rectal polyps usually need
Fecal Donations- I have yet to give one today
A Dental- Rectal Erector- A stick so far up their ass they can chew on it

Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, steak in one hand, chocolate in the other, yelling "Holy F***, What a Ride!"
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My personal favorite of the "medical" terminologies:
Rectal polyp- an asshat
Rectal craniectomy- what rectal polyps usually need
Fecal Donations- I have yet to give one today
A Dental- Rectal Erector- A stick so far up their ass they can chew on it

Then there is Cranio-rectal inversion.. Head up the ass
From a submarine perspective, a Fecal Donation is a Sanitary offload